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Interview Preparation Guides

Comprehensive interview preparation for the world’s hardest companies to get into, targeting full-stack engineering roles with deep AI/ML infrastructure expertise.

CompanyFocus AreasComp Range (Senior)
AnthropicLLM inference, GPU serving, concurrency, safety~$550K
GoogleDS&A at scale, system design, Googleyness, TPU/ML~$400-650K
Google DeepMindML research + engineering, JAX, AlphaFold, Gemini~$400-750K
OpenAIAPI infrastructure, ML systems, mission alignment~$450-600K
MetaPlanetary scale, AI-enabled coding round, LLaMA~$450-700K
ApplePrivacy-first ML, on-device inference, product excellence~$400-650K
NVIDIAGPU/CUDA programming, parallel computing, AI infra~$400-750K
Moonshot AILong-context LLMs, NLP research, Chinese AI frontierCompetitive + equity
CompanyFocus AreasComp Range (Senior)
NetflixDistributed systems, streaming, culture, recommendations~$350-500K (cash)
AmazonLeadership Principles, services architecture, AWS/ML~$350-450K (Y1)
DatabricksMost selective non-FAANG, Lakehouse, Spark, Delta Lake~$400-700K
StripeNo leetcode, bug bash, payments infra, financial correctness~$400-650K
PalantirDecomposition, data platforms, entity modeling, AIP~$350-500K
CompanyFocus AreasComp Range (Senior)
Jane StreetOCaml, probability, low-latency, market making~$600K-1.5M
Two SigmaDP-heavy coding, data infra, quant reasoning~$500K-1M+
Citadel / Citadel SecuritiesHardest algo rounds, C++, low-latency matching~$500K-1.5M+
HRT (Hudson River Trading)Nanosecond latency, C++, FPGA, kernel bypass~$700K-2M+
Renaissance TechnologiesMost exclusive firm on Earth, invite-only, PhD bar~$1M-5M+
CompanyFocus AreasComp Range (Senior)
SpaceX7-9 rounds, mission-critical software, Starlink~$300-500K + equity
TierCompaniesWhat Makes It Hard
Near-impossibleRenaissance TechnologiesInvite-only, ~300 employees, PhD required
ExtremeHRT, SpaceX, Citadel, Jane StreetTiny headcount, world-class algorithmic bar
Very HardDeepMind, Anthropic, Databricks, Two SigmaResearch-grade bar, highly selective
HardGoogle, Meta, OpenAI, Stripe, NVIDIA, MoonshotStructured but demanding, massive applicant pools
HardNetflix, Amazon, Apple, PalantirStrong bar with unique cultural/domain requirements
TopicRelevance
Full-Stack AI EngineeringData pipelines, feature stores, model serving, monitoring
Distributed SystemsConsensus, replication, caching, load balancing
ML InfrastructureTraining infra, experiment tracking, drift detection
Round TypeGoogleMetaOpenAINetflixAmazonStripeNVIDIAJane StreetCitadelSpaceX
Coding2-32 (1 AI-enabled)2121 (practical)1-21-223-4
System Design1111-211 (payments)1111
Behavioral1111-2 (culture)4 (all rounds)11111
Unique Round—AI coding—Culture deep diveBar RaiserBug Bash + IntegrationGPU/CUDAProbability/Math—Take-home (4hr)
Total Rounds5-75-65-64-55-654-65-74-57-9

Defend Your System is the course’s interview module (iv.01, Pass 11): a question bank answered against the system you built, with the ADRs, load reports, and postmortems that back each answer.

  1. Start with shared concepts — Build the foundation that applies everywhere
  2. Pick your target companies — Focus on 2-3 at a time
  3. Study company-specific patterns — Each company has unique interview styles
  4. Practice with code — Don’t just read; implement every code sample
  5. Time yourself — Most rounds are 45-60 minutes with 5-10 min for questions
  6. Cross-reference — Many concepts overlap (concurrency appears at Anthropic, Google, NVIDIA, and all quant firms)